I'll take a small chamber requiring little to no dome to achieve a specific compression ratio over a large chamber requiring a big dome to achieve the same compression every time.
FYI, through the end of the 2007 season when I retired my 468, there wasn't one 468 with 049/781 heads installed in a similar weight Chevelle, competing in Division 1 brackets that could run on par with my ride no mind quicker.
Matter of fact, my Chevelle ran quicker than EVERY n/a 454, 496, 502, GM's 720HP 572 and most 540's regardless of which head they ran, in a similar Chevelle here in Division 1 brackets, just saying.
BTW, the devil is in the details and the performance that HP Hunter speaks of also comes by way of a $6,000 Coan XLT 350 trans backing up that 496.
Just saying.